| 退火温度对Al-Mg 合金拉伸性能和显微组织的影响 |
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| 引用本文： | 张宇玮.退火温度对Al-Mg 合金拉伸性能和显微组织的影响[J].宇航材料工艺,2012,42(1):61-66. |
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| 作者姓名： | 张宇玮 |
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| 作者单位： | 1. 航天材料及工艺研究所,北京,100076
2. 中南大学,长沙,410083 |
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| 摘 要： | 通过硬度、拉伸性能测试和金相组织观察,研究了不同退火温度对含和不合Sc的Al-Mg合金组织和性能的影响.结果表明:添加Sc明显提高了Al-Mg合金的强度,抑制了合金形变组织的再结晶,高温退火后1570合金中仍弥散分布的Al3( Sc,Zr)粒子质点造成其较高的再结晶温度及拉伸性能.
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| 关 键 词： | Al-Mg合金 退火温度 拉伸性能 显微组织 |
Influence of Annealing Temperature on Tensile Properties and Microstructure of Al-Mg Alloys |
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| Zhang Yuwei
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Pan Qinglin
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Du Zhihui
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Chen Yonglai
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Shan Qun.Influence of Annealing Temperature on Tensile Properties and Microstructure of Al-Mg Alloys[J].Aerospace Materials & Technology,2012,42(1):61-66. |
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| Authors: | Zhang Yuwei Pan Qinglin Du Zhihui Chen Yonglai Shan Qun |
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| Institution: | 1(1 Aerospace Research Institute of Materials & Processing Technology,Beijing 100076)(2 Central South University,Changsha 410083) |
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| Abstract: | The effects of Sc on microstructure,recrystallization temperature and mechanical properties of Al-Mg alloy were studied by optical microscope,hardness measurement,tensile testing and TEM techniques.The results show that Sc can improve the mechanical properties effectively,prevent the recrystallization of Al-Mg alloy,The dispersed secondary Al(Sc,Zr) phase precipitated from α(Al) is coherent with the matrix after high temperature annealing resulting in high recrystallization temperature and tensile properties of 1570 alloy. |
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| Keywords: | Al-Mg alloy Annealing temperature Tensile properties Microstructure |
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